Debt and equity issuance costs.

No definition available.

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Amount of noncash expense included in interest expense to amortize debt discount and premium associated with the related debt instruments. Excludes amortization of financing costs. Alternate captions include noncash interest expense.

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Including the current and noncurrent portions, carrying value as of the balance sheet date of a written promise to pay a note, initially due after one year or beyond the operating cycle if longer, which can be exchanged for a specified amount of one or more securities (typically common stock), at the option of the issuer or the holder.

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Information about derivative transactions entered into in connection with convertible debt instruments which may be settled in cash upon conversion, including partial cash settlement. Descriptions include the terms of such transactions, how the derivative transaction(s) relate to the convertible debt instrument, the number of underlying shares and the reasons for entering into the derivative transaction(s). An example of a derivative transaction entered into in connection with the issuance of the convertible debt instrument is the purchase of call options that are expected to substantially offset changes in the fair value of the conversion option.

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The price per share of the conversion feature embedded in the debt instrument.

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Face (par) amount of debt instrument at time of issuance.

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Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Amount of the required periodic payments including both interest and principal payments.

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Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Amount of the cost of borrowed funds accounted for as interest expense.

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Amount of interest payable on debt, including, but not limited to, trade payables.

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Including the current and noncurrent portions, aggregate carrying amount of all types of notes payable, as of the balance sheet date, with initial maturities beyond one year or beyond the normal operating cycle, if longer.

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The cash outflow for cost incurred directly with the issuance of an equity security.

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The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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Notes Payable, Long-Term Borrowing, and Convertible Notes (Details Narrative) - USD ($)			9 Months Ended
	Feb. 26, 2021	Feb. 02, 2021	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020	Apr. 21, 2020	Oct. 01, 2018	Apr. 30, 2018
Short-term Debt [Line Items]
Amortization of debt discount premium			$ 10,693,000	$ 12,271,000
Debt principal amount			317,097,000		$ 28,848,000
Paycheck Protection Program Loan [Member]
Short-term Debt [Line Items]
Repayment of notes	$ 4,700,000
Evolution AI Corporation EAI [Member] \| Note Payable [Member]
Short-term Debt [Line Items]
Debt principal amount							$ 2,700,000
Debt interest rate							10.00%
Interest Payable			2,000,000.0
Evolution AI Corporation EAI [Member] \| Interest and Penalties [Member]
Short-term Debt [Line Items]
Debt instrument, periodic payment			4,900,000
Secured Debt [Member] \| AMC Networks Ventures LLC [Member]
Short-term Debt [Line Items]
Debt principal amount								$ 25,000,000.0
Repayment of notes			$ 20,000,000.0
Secured Debt [Member] \| London Interbank Offered Rate [Member]
Short-term Debt [Line Items]
Debt interest rate								5.25%
Chief Executive Officer [Member]
Short-term Debt [Line Items]
Debt interest rate			4.00%
Debt instrument, periodic payment			$ 36,000
Notes payable, net of discount			30,000
2026 Convertible Notes [Member]
Short-term Debt [Line Items]
Convertible Notes Payable		$ 402,500,000
Debt instrument, conversion price		$ 57.78
Convertible debt description		during any calendar quarter (and only during such calendar quarter) commencing after the calendar quarter ended on March 31, 2021, if the last reported sale price of the Company’s common stock for at least 20 trading days (whether or not consecutive) during a period of 30 consecutive trading days ending on the last trading day of the immediately preceding calendar quarter is greater than or equal to 130% of the conversion price on each applicable trading day;
Debt Instrument, Interest Rate, Effective Percentage		8.67%
Debt and equity issuance costs		$ 13,100,000
Stock issuance costs		3,000,000
Debt Issuance Costs, Net		$ 10,100,000
Debt principal amount			$ 312,119,000
Debt interest rate			3.25%
2026 Convertible Notes One [Member] \| Holders [Member]
Short-term Debt [Line Items]
Convertible debt description		The Company may also redeem all or any portion of the 2026 Convertible Notes after February 20, 2024 if the last reported sale price of the Company’s common stock has been at least 130% of the conversion price then in effect for at least 20 trading days during any 30 consecutive trading day period ending on, and including, the trading day immediately preceding the date on which the Company provides notice of redemption at a redemption price equal to 100% of the principal amount of the 2026 Convertible Notes to be redeemed, plus accrued and unpaid interest to, but excluding, the redemption date. Upon conversion, the Company can elect to deliver cash or shares or a combination of cash or shares.
Convertible Notes [Member]
Short-term Debt [Line Items]
Amortization of debt discount premium		$ 90,900,000
Convertible 2026 [Member]
Short-term Debt [Line Items]
Interest Expense			$ 7,000,000.0
Forgiveness Loan [Member] \| SBA [Member] \| Paycheck Protection Program Loan [Member]
Short-term Debt [Line Items]
Debt principal amount						$ 4,700,000